*{
    margin: 0;
    padding: 0;
}
html,body{
    width: 100%;
    height: 100%;
}

body{
    display: flex;
}

body {
	font-family: Helvetica, Arial, "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", "tohoma,sans-serif";
}